/**
 * SWFUpload: http://www.swfupload.org, http://swfupload.googlecode.com
 * 
 * mmSWFUpload 1.0: Flash upload dialog - http://profandesign.se/swfupload/,
 * http://www.vinterwebb.se/
 * 
 * SWFUpload is (c) 2006-2007 Lars Huring, Olov Nilz�n and Mammon Media and is
 * released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * SWFUpload 2 is (c) 2007-2008 Jake Roberts and is released under the MIT
 * License: http://www.opensource.org/licenses/mit-license.php
 * 
 */

/* ******************* */
/* Constructor & Init */
/* ******************* */
var SWFUpload;

if (SWFUpload == undefined) {
	SWFUpload = function(settings) {
		this.initSWFUpload(settings);
	};
}

SWFUpload.prototype.initSWFUpload = function(settings) {
	try {
		this.customSettings = {}; // A container where developers can place
									// their own settings associated with this
									// instance.
		this.settings = settings;
		this.eventQueue = [];
		this.movieName = "SWFUpload_" + SWFUpload.movieCount++;
		this.movieElement = null;

		// Setup global control tracking
		SWFUpload.instances[this.movieName] = this;

		// Load the settings. Load the Flash movie.
		this.initSettings();
		this.loadFlash();
		this.displayDebugInfo();
	} catch (ex) {
		delete SWFUpload.instances[this.movieName];
		throw ex;
	}
};

/* *************** */
/* Static Members */
/* *************** */
SWFUpload.instances = {};
SWFUpload.movieCount = 0;
SWFUpload.version = "2.2.0 2009-03-25";
SWFUpload.QUEUE_ERROR = {
	QUEUE_LIMIT_EXCEEDED : -100,
	FILE_EXCEEDS_SIZE_LIMIT : -110,
	ZERO_BYTE_FILE : -120,
	INVALID_FILETYPE : -130
};
SWFUpload.UPLOAD_ERROR = {
	HTTP_ERROR : -200,
	MISSING_UPLOAD_URL : -210,
	IO_ERROR : -220,
	SECURITY_ERROR : -230,
	UPLOAD_LIMIT_EXCEEDED : -240,
	UPLOAD_FAILED : -250,
	SPECIFIED_FILE_ID_NOT_FOUND : -260,
	FILE_VALIDATION_FAILED : -270,
	FILE_CANCELLED : -280,
	UPLOAD_STOPPED : -290
};
SWFUpload.FILE_STATUS = {
	QUEUED : -1,
	IN_PROGRESS : -2,
	ERROR : -3,
	COMPLETE : -4,
	CANCELLED : -5
};
SWFUpload.BUTTON_ACTION = {
	SELECT_FILE : -100,
	SELECT_FILES : -110,
	START_UPLOAD : -120
};
SWFUpload.CURSOR = {
	ARROW : -1,
	HAND : -2
};
SWFUpload.WINDOW_MODE = {
	WINDOW : "window",
	TRANSPARENT : "transparent",
	OPAQUE : "opaque"
};

// Private: takes a URL, determines if it is relative and converts to an
// absolute URL
// using the current site. Only processes the URL if it can, otherwise returns
// the URL untouched
SWFUpload.completeURL = function(url) {
	if (typeof(url) !== "string" || url.match(/^https?:\/\//i)
			|| url.match(/^\//)) {
		return url;
	}

	var currentURL = window.location.protocol + "//" + window.location.hostname
			+ (window.location.port ? ":" + window.location.port : "");

	var indexSlash = window.location.pathname.lastIndexOf("/");
	if (indexSlash <= 0) {
		path = "/";
	} else {
		path = window.location.pathname.substr(0, indexSlash) + "/";
	}

	return /* currentURL + */path + url;

};

/* ******************** */
/* Instance Members */
/* ******************** */

// Private: initSettings ensures that all the
// settings are set, getting a default value if one was not assigned.
SWFUpload.prototype.initSettings = function() {
	this.ensureDefault = function(settingName, defaultValue) {
		this.settings[settingName] = (this.settings[settingName] == undefined)
				? defaultValue
				: this.settings[settingName];
	};

	// Upload backend settings
	this.ensureDefault("upload_url", "");
	this.ensureDefault("preserve_relative_urls", false);
	this.ensureDefault("file_post_name", "Filedata");
	this.ensureDefault("post_params", {});
	this.ensureDefault("use_query_string", false);
	this.ensureDefault("requeue_on_error", false);
	this.ensureDefault("http_success", []);
	this.ensureDefault("assume_success_timeout", 0);

	// File Settings
	this.ensureDefault("file_types", "*.*");
	this.ensureDefault("file_types_description", "All Files");
	this.ensureDefault("file_size_limit", 0); // Default zero means
												// "unlimited"
	this.ensureDefault("file_upload_limit", 0);
	this.ensureDefault("file_queue_limit", 0);

	// Flash Settings
	this.ensureDefault("flash_url", "swfupload.swf");
	this.ensureDefault("prevent_swf_caching", true);

	// Button Settings
	this.ensureDefault("button_image_url", "");
	this.ensureDefault("button_width", 1);
	this.ensureDefault("button_height", 1);
	this.ensureDefault("button_text", "");
	this.ensureDefault("button_text_style", "color: #000000; font-size: 16pt;");
	this.ensureDefault("button_text_top_padding", 0);
	this.ensureDefault("button_text_left_padding", 0);
	this.ensureDefault("button_action", SWFUpload.BUTTON_ACTION.SELECT_FILES);
	this.ensureDefault("button_disabled", false);
	this.ensureDefault("button_placeholder_id", "");
	this.ensureDefault("button_placeholder", null);
	this.ensureDefault("button_cursor", SWFUpload.CURSOR.ARROW);
	this.ensureDefault("button_window_mode", SWFUpload.WINDOW_MODE.WINDOW);

	// Debug Settings
	this.ensureDefault("debug", false);
	this.settings.debug_enabled = this.settings.debug; // Here to maintain v2
														// API

	// Event Handlers
	this.settings.return_upload_start_handler = this.returnUploadStart;
	this.ensureDefault("swfupload_loaded_handler", null);
	this.ensureDefault("file_dialog_start_handler", null);
	this.ensureDefault("file_queued_handler", null);
	this.ensureDefault("file_queue_error_handler", null);
	this.ensureDefault("file_dialog_complete_handler", null);

	this.ensureDefault("upload_start_handler", null);
	this.ensureDefault("upload_progress_handler", null);
	this.ensureDefault("upload_error_handler", null);
	this.ensureDefault("upload_success_handler", null);
	this.ensureDefault("upload_complete_handler", null);

	this.ensureDefault("debug_handler", this.debugMessage);

	this.ensureDefault("custom_settings", {});

	// Other settings
	this.customSettings = this.settings.custom_settings;

	// Update the flash url if needed
	if (!!this.settings.prevent_swf_caching) {
		this.settings.flash_url = this.settings.flash_url
				+ (this.settings.flash_url.indexOf("?") < 0 ? "?" : "&")
				+ "preventswfcaching=" + new Date().getTime();
	}

	if (!this.settings.preserve_relative_urls) {
		// this.settings.flash_url =
		// SWFUpload.completeURL(this.settings.flash_url); // Don't need to do
		// this one since flash doesn't look at it
		this.settings.upload_url = SWFUpload
				.completeURL(this.settings.upload_url);
		this.settings.button_image_url = SWFUpload
				.completeURL(this.settings.button_image_url);
	}

	delete this.ensureDefault;
};

// Private: loadFlash replaces the button_placeholder element with the flash
// movie.
SWFUpload.prototype.loadFlash = function() {
	var targetElement, tempParent;

	// Make sure an element with the ID we are going to use doesn't already
	// exist
	if (document.getElementById(this.movieName) !== null) {
		throw "ID " + this.movieName
				+ " is already in use. The Flash Object could not be added";
	}

	// Get the element where we will be placing the flash movie
	targetElement = document
			.getElementById(this.settings.button_placeholder_id)
			|| this.settings.button_placeholder;

	if (targetElement == undefined) {
		throw "Could not find the placeholder element: "
				+ this.settings.button_placeholder_id;
	}

	// Append the container and load the flash
	tempParent = document.createElement("div");
	tempParent.innerHTML = this.getFlashHTML(); // Using innerHTML is
												// non-standard but the only
												// sensible way to dynamically
												// add Flash in IE (and maybe
												// other browsers)
	targetElement.parentNode.replaceChild(tempParent.firstChild, targetElement);

	// Fix IE Flash/Form bug
	if (window[this.movieName] == undefined) {
		window[this.movieName] = this.getMovieElement();
	}

};

// Private: getFlashHTML generates the object tag needed to embed the flash in
// to the document
SWFUpload.prototype.getFlashHTML = function() {
	// Flash Satay object syntax: http://www.alistapart.com/articles/flashsatay
	return ['<object id="', this.movieName,
			'" type="application/x-shockwave-flash" data="',
			this.settings.flash_url, '" width="', this.settings.button_width,
			'" height="', this.settings.button_height, '" class="swfupload">',
			'<param name="wmode" value="', this.settings.button_window_mode,
			'" />', '<param name="movie" value="', this.settings.flash_url,
			'" />', '<param name="quality" value="high" />',
			'<param name="menu" value="false" />',
			'<param name="allowScriptAccess" value="always" />',
			'<param name="flashvars" value="' + this.getFlashVars() + '" />',
			'</object>'].join("");
};

// Private: getFlashVars builds the parameter string that will be passed
// to flash in the flashvars param.
SWFUpload.prototype.getFlashVars = function() {
	// Build a string from the post param object
	var paramString = this.buildParamString();
	var httpSuccessString = this.settings.http_success.join(",");

	// Build the parameter string
	return ["movieName=", encodeURIComponent(this.movieName),
			"&amp;uploadURL=", encodeURIComponent(this.settings.upload_url),
			"&amp;useQueryString=",
			encodeURIComponent(this.settings.use_query_string),
			"&amp;requeueOnError=",
			encodeURIComponent(this.settings.requeue_on_error),
			"&amp;httpSuccess=", encodeURIComponent(httpSuccessString),
			"&amp;assumeSuccessTimeout=",
			encodeURIComponent(this.settings.assume_success_timeout),
			"&amp;params=", encodeURIComponent(paramString),
			"&amp;filePostName=",
			encodeURIComponent(this.settings.file_post_name),
			"&amp;fileTypes=", encodeURIComponent(this.settings.file_types),
			"&amp;fileTypesDescription=",
			encodeURIComponent(this.settings.file_types_description),
			"&amp;fileSizeLimit=",
			encodeURIComponent(this.settings.file_size_limit),
			"&amp;fileUploadLimit=",
			encodeURIComponent(this.settings.file_upload_limit),
			"&amp;fileQueueLimit=",
			encodeURIComponent(this.settings.file_queue_limit),
			"&amp;debugEnabled=",
			encodeURIComponent(this.settings.debug_enabled),
			"&amp;buttonImageURL=",
			encodeURIComponent(this.settings.button_image_url),
			"&amp;buttonWidth=",
			encodeURIComponent(this.settings.button_width),
			"&amp;buttonHeight=",
			encodeURIComponent(this.settings.button_height),
			"&amp;buttonText=", encodeURIComponent(this.settings.button_text),
			"&amp;buttonTextTopPadding=",
			encodeURIComponent(this.settings.button_text_top_padding),
			"&amp;buttonTextLeftPadding=",
			encodeURIComponent(this.settings.button_text_left_padding),
			"&amp;buttonTextStyle=",
			encodeURIComponent(this.settings.button_text_style),
			"&amp;buttonAction=",
			encodeURIComponent(this.settings.button_action),
			"&amp;buttonDisabled=",
			encodeURIComponent(this.settings.button_disabled),
			"&amp;buttonCursor=",
			encodeURIComponent(this.settings.button_cursor)].join("");
};

// Public: getMovieElement retrieves the DOM reference to the Flash element
// added by SWFUpload
// The element is cached after the first lookup
SWFUpload.prototype.getMovieElement = function() {
	if (this.movieElement == undefined) {
		this.movieElement = document.getElementById(this.movieName);
	}

	if (this.movieElement === null) {
		throw "Could not find Flash element";
	}

	return this.movieElement;
};

// Private: buildParamString takes the name/value pairs in the post_params
// setting object
// and joins them up in to a string formatted "name=value&amp;name=value"
SWFUpload.prototype.buildParamString = function() {
	var postParams = this.settings.post_params;
	var paramStringPairs = [];

	if (typeof(postParams) === "object") {
		for (var name in postParams) {
			if (postParams.hasOwnProperty(name)) {
				paramStringPairs.push(encodeURIComponent(name.toString()) + "="
						+ encodeURIComponent(postParams[name].toString()));
			}
		}
	}

	return paramStringPairs.join("&amp;");
};

// Public: Used to remove a SWFUpload instance from the page. This method
// strives to remove
// all references to the SWF, and other objects so memory is properly freed.
// Returns true if everything was destroyed. Returns a false if a failure occurs
// leaving SWFUpload in an inconsistant state.
// Credits: Major improvements provided by steffen
SWFUpload.prototype.destroy = function() {
	try {
		// Make sure Flash is done before we try to remove it
		this.cancelUpload(null, false);

		// Remove the SWFUpload DOM nodes
		var movieElement = null;
		movieElement = this.getMovieElement();

		if (movieElement && typeof(movieElement.CallFunction) === "unknown") { // We
																				// only
																				// want
																				// to
																				// do
																				// this
																				// in
																				// IE
			// Loop through all the movie's properties and remove all function
			// references (DOM/JS IE 6/7 memory leak workaround)
			for (var i in movieElement) {
				try {
					if (typeof(movieElement[i]) === "function") {
						movieElement[i] = null;
					}
				} catch (ex1) {
				}
			}

			// Remove the Movie Element from the page
			try {
				movieElement.parentNode.removeChild(movieElement);
			} catch (ex) {
			}
		}

		// Remove IE form fix reference
		window[this.movieName] = null;

		// Destroy other references
		SWFUpload.instances[this.movieName] = null;
		delete SWFUpload.instances[this.movieName];

		this.movieElement = null;
		this.settings = null;
		this.customSettings = null;
		this.eventQueue = null;
		this.movieName = null;

		return true;
	} catch (ex2) {
		return false;
	}
};

// Public: displayDebugInfo prints out settings and configuration
// information about this SWFUpload instance.
// This function (and any references to it) can be deleted when placing
// SWFUpload in production.
SWFUpload.prototype.displayDebugInfo = function() {
	this
			.debug(	[
							"---SWFUpload Instance Info---\n",
							"Version: ",
							SWFUpload.version,
							"\n",
							"Movie Name: ",
							this.movieName,
							"\n",
							"Settings:\n",
							"\t",
							"upload_url:               ",
							this.settings.upload_url,
							"\n",
							"\t",
							"flash_url:                ",
							this.settings.flash_url,
							"\n",
							"\t",
							"use_query_string:         ",
							this.settings.use_query_string.toString(),
							"\n",
							"\t",
							"requeue_on_error:         ",
							this.settings.requeue_on_error.toString(),
							"\n",
							"\t",
							"http_success:             ",
							this.settings.http_success.join(", "),
							"\n",
							"\t",
							"assume_success_timeout:   ",
							this.settings.assume_success_timeout,
							"\n",
							"\t",
							"file_post_name:           ",
							this.settings.file_post_name,
							"\n",
							"\t",
							"post_params:              ",
							this.settings.post_params.toString(),
							"\n",
							"\t",
							"file_types:               ",
							this.settings.file_types,
							"\n",
							"\t",
							"file_types_description:   ",
							this.settings.file_types_description,
							"\n",
							"\t",
							"file_size_limit:          ",
							this.settings.file_size_limit,
							"\n",
							"\t",
							"file_upload_limit:        ",
							this.settings.file_upload_limit,
							"\n",
							"\t",
							"file_queue_limit:         ",
							this.settings.file_queue_limit,
							"\n",
							"\t",
							"debug:                    ",
							this.settings.debug.toString(),
							"\n",

							"\t",
							"prevent_swf_caching:      ",
							this.settings.prevent_swf_caching.toString(),
							"\n",

							"\t",
							"button_placeholder_id:    ",
							this.settings.button_placeholder_id.toString(),
							"\n",
							"\t",
							"button_placeholder:       ",
							(this.settings.button_placeholder
									? "Set"
									: "Not Set"),
							"\n",
							"\t",
							"button_image_url:         ",
							this.settings.button_image_url.toString(),
							"\n",
							"\t",
							"button_width:             ",
							this.settings.button_width.toString(),
							"\n",
							"\t",
							"button_height:            ",
							this.settings.button_height.toString(),
							"\n",
							"\t",
							"button_text:              ",
							this.settings.button_text.toString(),
							"\n",
							"\t",
							"button_text_style:        ",
							this.settings.button_text_style.toString(),
							"\n",
							"\t",
							"button_text_top_padding:  ",
							this.settings.button_text_top_padding.toString(),
							"\n",
							"\t",
							"button_text_left_padding: ",
							this.settings.button_text_left_padding.toString(),
							"\n",
							"\t",
							"button_action:            ",
							this.settings.button_action.toString(),
							"\n",
							"\t",
							"button_disabled:          ",
							this.settings.button_disabled.toString(),
							"\n",

							"\t",
							"custom_settings:          ",
							this.settings.custom_settings.toString(),
							"\n",
							"Event Handlers:\n",
							"\t",
							"swfupload_loaded_handler assigned:  ",
							(typeof this.settings.swfupload_loaded_handler === "function")
									.toString(),
							"\n",
							"\t",
							"file_dialog_start_handler assigned: ",
							(typeof this.settings.file_dialog_start_handler === "function")
									.toString(),
							"\n",
							"\t",
							"file_queued_handler assigned:       ",
							(typeof this.settings.file_queued_handler === "function")
									.toString(),
							"\n",
							"\t",
							"file_queue_error_handler assigned:  ",
							(typeof this.settings.file_queue_error_handler === "function")
									.toString(),
							"\n",
							"\t",
							"upload_start_handler assigned:      ",
							(typeof this.settings.upload_start_handler === "function")
									.toString(),
							"\n",
							"\t",
							"upload_progress_handler assigned:   ",
							(typeof this.settings.upload_progress_handler === "function")
									.toString(),
							"\n",
							"\t",
							"upload_error_handler assigned:      ",
							(typeof this.settings.upload_error_handler === "function")
									.toString(),
							"\n",
							"\t",
							"upload_success_handler assigned:    ",
							(typeof this.settings.upload_success_handler === "function")
									.toString(),
							"\n",
							"\t",
							"upload_complete_handler assigned:   ",
							(typeof this.settings.upload_complete_handler === "function")
									.toString(),
							"\n",
							"\t",
							"debug_handler assigned:             ",
							(typeof this.settings.debug_handler === "function")
									.toString(), "\n"].join(""));
};

/*
 * Note: addSetting and getSetting are no longer used by SWFUpload but are
 * included the maintain v2 API compatibility
 */
// Public: (Deprecated) addSetting adds a setting value. If the value given is
// undefined or null then the default_value is used.
SWFUpload.prototype.addSetting = function(name, value, default_value) {
	if (value == undefined) {
		return (this.settings[name] = default_value);
	} else {
		return (this.settings[name] = value);
	}
};

// Public: (Deprecated) getSetting gets a setting. Returns an empty string if
// the setting was not found.
SWFUpload.prototype.getSetting = function(name) {
	if (this.settings[name] != undefined) {
		return this.settings[name];
	}

	return "";
};

// Private: callFlash handles function calls made to the Flash element.
// Calls are made with a setTimeout for some functions to work around
// bugs in the ExternalInterface library.
SWFUpload.prototype.callFlash = function(functionName, argumentArray) {
	argumentArray = argumentArray || [];

	var movieElement = this.getMovieElement();
	var returnValue, returnString;

	// Flash's method if calling ExternalInterface methods (code adapted from
	// MooTools).
	try {
		returnString = movieElement.CallFunction('<invoke name="'
				+ functionName + '" returntype="javascript">'
				+ __flash__argumentsToXML(argumentArray, 0) + '</invoke>');
		returnValue = eval(returnString);
	} catch (ex) {
		throw "Call to " + functionName + " failed";
	}

	// Unescape file post param values
	if (returnValue != undefined && typeof returnValue.post === "object") {
		returnValue = this.unescapeFilePostParams(returnValue);
	}

	return returnValue;
};

/*******************************************************************************
 * -- Flash control methods -- Your UI should use these to operate SWFUpload
 ******************************************************************************/

// WARNING: this function does not work in Flash Player 10
// Public: selectFile causes a File Selection Dialog window to appear. This
// dialog only allows 1 file to be selected.
SWFUpload.prototype.selectFile = function() {
	this.callFlash("SelectFile");
};

// WARNING: this function does not work in Flash Player 10
// Public: selectFiles causes a File Selection Dialog window to appear/ This
// dialog allows the user to select any number of files
// Flash Bug Warning: Flash limits the number of selectable files based on the
// combined length of the file names.
// If the selection name length is too long the dialog will fail in an
// unpredictable manner. There is no work-around
// for this bug.
SWFUpload.prototype.selectFiles = function() {
	this.callFlash("SelectFiles");
};

// Public: startUpload starts uploading the first file in the queue unless
// the optional parameter 'fileID' specifies the ID
SWFUpload.prototype.startUpload = function(fileID) {
	this.callFlash("StartUpload", [fileID]);
};

// Public: cancelUpload cancels any queued file. The fileID parameter may be the
// file ID or index.
// If you do not specify a fileID the current uploading file or first file in
// the queue is cancelled.
// If you do not want the uploadError event to trigger you can specify false for
// the triggerErrorEvent parameter.
SWFUpload.prototype.cancelUpload = function(fileID, triggerErrorEvent) {
	if (triggerErrorEvent !== false) {
		triggerErrorEvent = true;
	}
	this.callFlash("CancelUpload", [fileID, triggerErrorEvent]);
};

// Public: stopUpload stops the current upload and requeues the file at the
// beginning of the queue.
// If nothing is currently uploading then nothing happens.
SWFUpload.prototype.stopUpload = function() {
	this.callFlash("StopUpload");
};

/*******************************************************************************
 * Settings methods These methods change the SWFUpload settings. SWFUpload
 * settings should not be changed directly on the settings object since many of
 * the settings need to be passed to Flash in order to take effect.
 * ***********************
 */

// Public: getStats gets the file statistics object.
SWFUpload.prototype.getStats = function() {
	return this.callFlash("GetStats");
};

// Public: setStats changes the SWFUpload statistics. You shouldn't need to
// change the statistics but you can. Changing the statistics does not
// affect SWFUpload accept for the successful_uploads count which is used
// by the upload_limit setting to determine how many files the user may upload.
SWFUpload.prototype.setStats = function(statsObject) {
	this.callFlash("SetStats", [statsObject]);
};

// Public: getFile retrieves a File object by ID or Index. If the file is
// not found then 'null' is returned.
SWFUpload.prototype.getFile = function(fileID) {
	if (typeof(fileID) === "number") {
		return this.callFlash("GetFileByIndex", [fileID]);
	} else {
		return this.callFlash("GetFile", [fileID]);
	}
};

// Public: addFileParam sets a name/value pair that will be posted with the
// file specified by the Files ID. If the name already exists then the
// exiting value will be overwritten.
SWFUpload.prototype.addFileParam = function(fileID, name, value) {
	return this.callFlash("AddFileParam", [fileID, name, value]);
};

// Public: removeFileParam removes a previously set (by addFileParam) name/value
// pair from the specified file.
SWFUpload.prototype.removeFileParam = function(fileID, name) {
	this.callFlash("RemoveFileParam", [fileID, name]);
};

// Public: setUploadUrl changes the upload_url setting.
SWFUpload.prototype.setUploadURL = function(url) {
	this.settings.upload_url = url.toString();
	this.callFlash("SetUploadURL", [url]);
};

// Public: setPostParams changes the post_params setting
SWFUpload.prototype.setPostParams = function(paramsObject) {
	this.settings.post_params = paramsObject;
	this.callFlash("SetPostParams", [paramsObject]);
};

// Public: addPostParam adds post name/value pair. Each name can have only one
// value.
SWFUpload.prototype.addPostParam = function(name, value) {
	this.settings.post_params[name] = value;
	this.callFlash("SetPostParams", [this.settings.post_params]);
};

// Public: removePostParam deletes post name/value pair.
SWFUpload.prototype.removePostParam = function(name) {
	delete this.settings.post_params[name];
	this.callFlash("SetPostParams", [this.settings.post_params]);
};

// Public: setFileTypes changes the file_types setting and the
// file_types_description setting
SWFUpload.prototype.setFileTypes = function(types, description) {
	this.settings.file_types = types;
	this.settings.file_types_description = description;
	this.callFlash("SetFileTypes", [types, description]);
};

// Public: setFileSizeLimit changes the file_size_limit setting
SWFUpload.prototype.setFileSizeLimit = function(fileSizeLimit) {
	this.settings.file_size_limit = fileSizeLimit;
	this.callFlash("SetFileSizeLimit", [fileSizeLimit]);
};

// Public: setFileUploadLimit changes the file_upload_limit setting
SWFUpload.prototype.setFileUploadLimit = function(fileUploadLimit) {
	this.settings.file_upload_limit = fileUploadLimit;
	this.callFlash("SetFileUploadLimit", [fileUploadLimit]);
};

// Public: setFileQueueLimit changes the file_queue_limit setting
SWFUpload.prototype.setFileQueueLimit = function(fileQueueLimit) {
	this.settings.file_queue_limit = fileQueueLimit;
	this.callFlash("SetFileQueueLimit", [fileQueueLimit]);
};

// Public: setFilePostName changes the file_post_name setting
SWFUpload.prototype.setFilePostName = function(filePostName) {
	this.settings.file_post_name = filePostName;
	this.callFlash("SetFilePostName", [filePostName]);
};

// Public: setUseQueryString changes the use_query_string setting
SWFUpload.prototype.setUseQueryString = function(useQueryString) {
	this.settings.use_query_string = useQueryString;
	this.callFlash("SetUseQueryString", [useQueryString]);
};

// Public: setRequeueOnError changes the requeue_on_error setting
SWFUpload.prototype.setRequeueOnError = function(requeueOnError) {
	this.settings.requeue_on_error = requeueOnError;
	this.callFlash("SetRequeueOnError", [requeueOnError]);
};

// Public: setHTTPSuccess changes the http_success setting
SWFUpload.prototype.setHTTPSuccess = function(http_status_codes) {
	if (typeof http_status_codes === "string") {
		http_status_codes = http_status_codes.replace(" ", "").split(",");
	}

	this.settings.http_success = http_status_codes;
	this.callFlash("SetHTTPSuccess", [http_status_codes]);
};

// Public: setHTTPSuccess changes the http_success setting
SWFUpload.prototype.setAssumeSuccessTimeout = function(timeout_seconds) {
	this.settings.assume_success_timeout = timeout_seconds;
	this.callFlash("SetAssumeSuccessTimeout", [timeout_seconds]);
};

// Public: setDebugEnabled changes the debug_enabled setting
SWFUpload.prototype.setDebugEnabled = function(debugEnabled) {
	this.settings.debug_enabled = debugEnabled;
	this.callFlash("SetDebugEnabled", [debugEnabled]);
};

// Public: setButtonImageURL loads a button image sprite
SWFUpload.prototype.setButtonImageURL = function(buttonImageURL) {
	if (buttonImageURL == undefined) {
		buttonImageURL = "";
	}

	this.settings.button_image_url = buttonImageURL;
	this.callFlash("SetButtonImageURL", [buttonImageURL]);
};

// Public: setButtonDimensions resizes the Flash Movie and button
SWFUpload.prototype.setButtonDimensions = function(width, height) {
	this.settings.button_width = width;
	this.settings.button_height = height;

	var movie = this.getMovieElement();
	if (movie != undefined) {
		movie.style.width = width + "px";
		movie.style.height = height + "px";
	}

	this.callFlash("SetButtonDimensions", [width, height]);
};
// Public: setButtonText Changes the text overlaid on the button
SWFUpload.prototype.setButtonText = function(html) {
	this.settings.button_text = html;
	this.callFlash("SetButtonText", [html]);
};
// Public: setButtonTextPadding changes the top and left padding of the text
// overlay
SWFUpload.prototype.setButtonTextPadding = function(left, top) {
	this.settings.button_text_top_padding = top;
	this.settings.button_text_left_padding = left;
	this.callFlash("SetButtonTextPadding", [left, top]);
};

// Public: setButtonTextStyle changes the CSS used to style the HTML/Text
// overlaid on the button
SWFUpload.prototype.setButtonTextStyle = function(css) {
	this.settings.button_text_style = css;
	this.callFlash("SetButtonTextStyle", [css]);
};
// Public: setButtonDisabled disables/enables the button
SWFUpload.prototype.setButtonDisabled = function(isDisabled) {
	this.settings.button_disabled = isDisabled;
	this.callFlash("SetButtonDisabled", [isDisabled]);
};
// Public: setButtonAction sets the action that occurs when the button is
// clicked
SWFUpload.prototype.setButtonAction = function(buttonAction) {
	this.settings.button_action = buttonAction;
	this.callFlash("SetButtonAction", [buttonAction]);
};

// Public: setButtonCursor changes the mouse cursor displayed when hovering over
// the button
SWFUpload.prototype.setButtonCursor = function(cursor) {
	this.settings.button_cursor = cursor;
	this.callFlash("SetButtonCursor", [cursor]);
};

/*******************************************************************************
 * Flash Event Interfaces These functions are used by Flash to trigger the
 * various events.
 * 
 * All these functions a Private.
 * 
 * Because the ExternalInterface library is buggy the event calls are added to a
 * queue and the queue then executed by a setTimeout. This ensures that events
 * are executed in a determinate order and that the ExternalInterface bugs are
 * avoided.
 ******************************************************************************/

SWFUpload.prototype.queueEvent = function(handlerName, argumentArray) {
	// Warning: Don't call this.debug inside here or you'll create an infinite
	// loop

	if (argumentArray == undefined) {
		argumentArray = [];
	} else if (!(argumentArray instanceof Array)) {
		argumentArray = [argumentArray];
	}

	var self = this;
	if (typeof this.settings[handlerName] === "function") {
		// Queue the event
		this.eventQueue.push(function() {
					this.settings[handlerName].apply(this, argumentArray);
				});

		// Execute the next queued event
		setTimeout(function() {
					self.executeNextEvent();
				}, 0);

	} else if (this.settings[handlerName] !== null) {
		throw "Event handler " + handlerName
				+ " is unknown or is not a function";
	}
};

// Private: Causes the next event in the queue to be executed. Since events are
// queued using a setTimeout
// we must queue them in order to garentee that they are executed in order.
SWFUpload.prototype.executeNextEvent = function() {
	// Warning: Don't call this.debug inside here or you'll create an infinite
	// loop

	var f = this.eventQueue ? this.eventQueue.shift() : null;
	if (typeof(f) === "function") {
		f.apply(this);
	}
};

// Private: unescapeFileParams is part of a workaround for a flash bug where
// objects passed through ExternalInterface cannot have
// properties that contain characters that are not valid for JavaScript
// identifiers. To work around this
// the Flash Component escapes the parameter names and we must unescape again
// before passing them along.
SWFUpload.prototype.unescapeFilePostParams = function(file) {
	var reg = /[$]([0-9a-f]{4})/i;
	var unescapedPost = {};
	var uk;

	if (file != undefined) {
		for (var k in file.post) {
			if (file.post.hasOwnProperty(k)) {
				uk = k;
				var match;
				while ((match = reg.exec(uk)) !== null) {
					uk = uk.replace(match[0], String.fromCharCode(parseInt("0x"
											+ match[1], 16)));
				}
				unescapedPost[uk] = file.post[k];
			}
		}

		file.post = unescapedPost;
	}

	return file;
};

// Private: Called by Flash to see if JS can call in to Flash (test if External
// Interface is working)
SWFUpload.prototype.testExternalInterface = function() {
	try {
		return this.callFlash("TestExternalInterface");
	} catch (ex) {
		return false;
	}
};

// Private: This event is called by Flash when it has finished loading. Don't
// modify this.
// Use the swfupload_loaded_handler event setting to execute custom code when
// SWFUpload has loaded.
SWFUpload.prototype.flashReady = function() {
	// Check that the movie element is loaded correctly with its
	// ExternalInterface methods defined
	var movieElement = this.getMovieElement();

	if (!movieElement) {
		this
				.debug("Flash called back ready but the flash movie can't be found.");
		return;
	}

	this.cleanUp(movieElement);

	this.queueEvent("swfupload_loaded_handler");
};

// Private: removes Flash added fuctions to the DOM node to prevent memory leaks
// in IE.
// This function is called by Flash each time the ExternalInterface functions
// are created.
SWFUpload.prototype.cleanUp = function(movieElement) {
	// Pro-actively unhook all the Flash functions
	try {
		if (this.movieElement
				&& typeof(movieElement.CallFunction) === "unknown") { // We
																		// only
																		// want
																		// to do
																		// this
																		// in IE
			this
					.debug("Removing Flash functions hooks (this should only run in IE and should prevent memory leaks)");
			for (var key in movieElement) {
				try {
					if (typeof(movieElement[key]) === "function") {
						movieElement[key] = null;
					}
				} catch (ex) {
				}
			}
		}
	} catch (ex1) {

	}

	// Fix Flashes own cleanup code so if the SWFMovie was removed from the page
	// it doesn't display errors.
	window["__flash__removeCallback"] = function(instance, name) {
		try {
			if (instance) {
				instance[name] = null;
			}
		} catch (flashEx) {

		}
	};

};

/* This is a chance to do something before the browse window opens */
SWFUpload.prototype.fileDialogStart = function() {
	this.queueEvent("file_dialog_start_handler");
};

/* Called when a file is successfully added to the queue. */
SWFUpload.prototype.fileQueued = function(file) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("file_queued_handler", file);
};

/* Handle errors that occur when an attempt to queue a file fails. */
SWFUpload.prototype.fileQueueError = function(file, errorCode, message) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("file_queue_error_handler", [file, errorCode, message]);
};

/*
 * Called after the file dialog has closed and the selected files have been
 * queued. You could call startUpload here if you want the queued files to begin
 * uploading immediately.
 */
SWFUpload.prototype.fileDialogComplete = function(numFilesSelected,
		numFilesQueued, numFilesInQueue) {
	this.queueEvent("file_dialog_complete_handler", [numFilesSelected,
					numFilesQueued, numFilesInQueue]);
};

SWFUpload.prototype.uploadStart = function(file) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("return_upload_start_handler", file);
};

SWFUpload.prototype.returnUploadStart = function(file) {
	var returnValue;
	if (typeof this.settings.upload_start_handler === "function") {
		file = this.unescapeFilePostParams(file);
		returnValue = this.settings.upload_start_handler.call(this, file);
	} else if (this.settings.upload_start_handler != undefined) {
		throw "upload_start_handler must be a function";
	}

	// Convert undefined to true so if nothing is returned from the
	// upload_start_handler it is
	// interpretted as 'true'.
	if (returnValue === undefined) {
		returnValue = true;
	}

	returnValue = !!returnValue;

	this.callFlash("ReturnUploadStart", [returnValue]);
};

SWFUpload.prototype.uploadProgress = function(file, bytesComplete, bytesTotal) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_progress_handler",
			[file, bytesComplete, bytesTotal]);
};

SWFUpload.prototype.uploadError = function(file, errorCode, message) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_error_handler", [file, errorCode, message]);
};

SWFUpload.prototype.uploadSuccess = function(file, serverData, responseReceived) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_success_handler", [file, serverData,
					responseReceived]);
};

SWFUpload.prototype.uploadComplete = function(file) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_complete_handler", file);
};

/*
 * Called by SWFUpload JavaScript and Flash functions when debug is enabled. By
 * default it writes messages to the internal debug console. You can override
 * this event and have messages written where you want.
 */
SWFUpload.prototype.debug = function(message) {
	this.queueEvent("debug_handler", message);
};

/*******************************************************************************
 * Debug Console The debug console is a self contained, in page location for
 * debug message to be sent. The Debug Console adds itself to the body if
 * necessary.
 * 
 * The console is automatically scrolled as messages appear.
 * 
 * If you are using your own debug handler or when you deploy to production and
 * have debug disabled you can remove these functions to reduce the file size
 * and complexity.
 ******************************************************************************/

// Private: debugMessage is the default debug_handler. If you want to print
// debug messages
// call the debug() function. When overriding the function your own function
// should
// check to see if the debug setting is true before outputting debug
// information.
SWFUpload.prototype.debugMessage = function(message) {
	if (this.settings.debug) {
		var exceptionMessage, exceptionValues = [];

		// Check for an exception object and print it nicely
		if (typeof message === "object" && typeof message.name === "string"
				&& typeof message.message === "string") {
			for (var key in message) {
				if (message.hasOwnProperty(key)) {
					exceptionValues.push(key + ": " + message[key]);
				}
			}
			exceptionMessage = exceptionValues.join("\n") || "";
			exceptionValues = exceptionMessage.split("\n");
			exceptionMessage = "EXCEPTION: "
					+ exceptionValues.join("\nEXCEPTION: ");
			SWFUpload.Console.writeLine(exceptionMessage);
		} else {
			SWFUpload.Console.writeLine(message);
		}
	}
};

SWFUpload.Console = {};
SWFUpload.Console.writeLine = function(message) {
	var console, documentForm;

	try {
		console = document.getElementById("SWFUpload_Console");

		if (!console) {
			documentForm = document.createElement("form");
			document.getElementsByTagName("body")[0].appendChild(documentForm);

			console = document.createElement("textarea");
			console.id = "SWFUpload_Console";
			console.style.fontFamily = "monospace";
			console.setAttribute("wrap", "off");
			console.wrap = "off";
			console.style.overflow = "auto";
			console.style.width = "700px";
			console.style.height = "350px";
			console.style.margin = "5px";
			documentForm.appendChild(console);
		}

		console.value += message + "\n";

		console.scrollTop = console.scrollHeight - console.clientHeight;
	} catch (ex) {
		alert("Exception: " + ex.name + " Message: " + ex.message);
	}
};
